Acetylene-gas generator.



P. w. ARTIN; Aon'riLBNn Ms GENERATOR. rum-r10! nun Jun-1, 1910.

UNITE-I) smit s P rnnrr OFFIGE.

FREDERICK WILLIAM MARTIN,- or WIcHI'r'A .-1mNsAsj cifiiLENE-Gias GENERATOR Sp eciflcati'on of Letters Patent.

Patented Apr. .4, 1911'.

" the when is'fed' to the chhid in Ol'di mcause gen'eratic'n cf the Ghti' Off the main obje't'ions to the acetycin't pressure 61: is maii'i-t'zrine d to Cause Y snppli'ed with Water and also to permit air pressure to be injected therein, suitable I opening is formed in the top 8 of the Chainher which is closed by means of a. screw the gas't'c flow stehdiiyto the Imps.

.The present invention overcomes the shove-mined bje'c'ti'on by providi g a Water suppl hjwmber wher'in air pressure is maintained to 'a sufiiciem degie' tn caus' c'biiti'nu'ou's feeding- (if the writer t0 theatrbid until the pressure of the generated gas overcomes the air pressure maintained in sure (if th' geni'ztt'ed gas will au'ton'i'ntitiztlly qut cffi the feeding of the water. i

' A further objeht of the-present invention resides in the simplicity and compactness of c'hnstrirct'ion. whereb the expense of p1-imh'riily comm-hating and subsequentl minntaiiii'ngtli genm-atmin o erative condition is reduced to a n'iinimn'm.

.Fiit'ther ohj-ects'a'nfl advantages will li -1 ear in the follcwing descripti n with referonce to the accoinphnying drawings wherein Figure: 1 is a plain view of myim-pm'ved generator. ig'. is a View in verticelsecticn'of the sk -hie.- Fig. 3'is a def-ail scti'o'n'al view of the tvhtl'r i'nIeLpl'iI gQ together with the valve for ermittin-gihsentrants of the presswn'e medium into the water chamber.

t is dstgaii View of the ghsucmsted valve- Referring. to the din-wing wherein like reference characters indicate like parts throughout the different views, the n nmeraland the wall surrounding the opening 4. his base plate is adapted to support cv; lihd'ricalc'zising's 6 and 7 which are ofa Sn cie'nlfdiameter to fit snugl o'ver and-abut against the annular projections 3 and 2 resliv'ectively. It will noted that the casing 6 is of a less height tha'nthe czising 7. but by being of agreater diameter than the casing 7 an annula'r'cha' xiiber 6 is formed therebetwesn, this chamber Being adapted to receive the waiter suppl which is imder sufficient ressure" to cause a" continuous feeding of the water" to the calrbid. This water chamber is normally closed by. means of the top 8 which is secured tO'th-ca'sings' 6- and 7 in any suitabl manner. v

In order to a l-low the chamber 6 to be threaded plug 8, this plug havi-ngn rubber gasket interposed between the {image formed on said ping and the will ofth'e oove'r 8 the said opening 10. This plug 6 with a cntral'apertnre' which perimts communi'ca tibn with" the interior of the chamber '6, a small check vafl've being.

surrbundirig locatedin said aperture and 'whi'le' permit-, ting the introduction ofa ir, by means of a suitable pump-,- prevents may escxpe or leak -.u'g'e of the air froih the chamber 6. In the construction of the plug 8 through which fluid pressure is i-ntroducediintn'the water chamber 6. it should be noted, that a depending tube 8 projects down into the water chamber for 2c short distance.

Vi-thin the casing 7 a: suit-able carbid receptavle is'positioned', which consists of at cylindrical wall 11 provided with a wire" mesh bottom 12 which seatsupon an annular bead 13 forniedintegtally with the casing 7, the gas chamber formed by the casing- T and the ca 'bid receptacle which ispositionedwithin the gas chamben are maintained closed by mems'of a cover 14 which is secured to an outwardty extending flange 15, formed at the top of the casing 7, this flange 15 being provided with an annular dprssionls, which receives a parking 17 the'cover 14 will-rest. By this structure it wilt be seen that While a gas tight joint will'h'e formed between the cover 14 and the casing 7, the cover may beiqnickly and easily ,1 1i

removed by loosening the nuts 19 from the lamps, not shown; while on the inner face bolts 20 which comprise the means for holding the cover 14 securely in position.

On the under face of the cover 14. a trough or funnel 21 is secured directly below the Water inlet plug 22. This inlet plug 22 communicates with a pipe 23 which extends down to and is connected with an internally apertured plug 2a which in turn communicates with another pipe 25 within the water chamber 6, the last named pipe intermedi ate its two ends having a small valve 25,

the function of which will be more clearly set forth hereinafter. In order that no impurities may be forced through the pipe 25, a filter or screen is secured to or formed on the lower end of the pipe 25.

From the above description it will .be seen that when the chamber 6 is supplied with 0 water and air pressure is introduced through the valve 9, the water will be maintained under a continuous fluid pressure. Suppos- .ing the air pressure within the water cham- Jger to be substantially 25 pounds it will be 25 seen that the water will be forced through the pipes 25, 23, and the plug 22 into the funnel or trough 21 through which it will fall upon the carbid contained within the receptacle 11. It will, of course, be understood that as soon as the Water comes in contact with the carbid,' gas will be generated and the same will continue to gather within the chamber 7 until such a gas pres sure iscreated therein that it equals or over- 3 comes the air pressure maintained within the water chamber 6. When this occurs.

the gas will force its way through the plug 22 into the pipes 23 and 25 until it comes in contact with the valve 25', whereupon the 40 said valve will be forced onto and held against its seat thereby preventing a further flow of'water throng the pipes-25 and 23 and thence into thecarbid chamber. This condition will be maintained until the gas pressure within the chamber 7 is reduced below the air pressure in the chamber 6 whereupon; the water will immediately resu ne its flow through-the pipes into the carbid chamber and thus cause a further 59 generation of gas. The above actions are repeated until either the supply of carbid or water is exhausted, so that at all times a sub stantial] uniform ressure is maintained within t e gas cham er 7.

The cover 14 which incloses the gas and. carbid chambers is provided with an outlet port formed by the pipe 26, which conveys the gas from the chamber 7 to any suitable of this cover andsurroundin the terminal 60 of the outlet port, a perforate for wire mesh basket 29 is secured, this basket being adapted to receive and hold a sponge or other porous and absorbent material so that any impurities which are contained within the gas will be removed upon the passage of the gas from the generating chamber to the lamps.

Asshown in Fig. 1, the cover 14: is provided with a suitable safety valve 31 and also with the pressure gage 32 which will at all times indicate exactly whatthe gas pressure is in the generator. An'enlarged opening 34 is also formed in the said cover and permits the carbid receptacle to be easily and quickly recharged by simply removing the screw plug 35 which normally closes the said opening, this plug having a packing-interposed between. a flange carriagevnthereon and an upwardly ektending ridge 36 formed on the cover 14:, the top or cover 8 of the water chamber 6 is also provided with a similar pressure gage 33 and it will therefore be apparent; that by consulting each of said pressure gages it may be determined what the condition of the carbid and water supply is.

As has been stated heretofore, the base plate 1 is provided with tliejnormally closed outlet 4: whereby the ashes which accumulate in the bottom of the chamber Tniay be removed without disturbing the cover 14-,

I claim z- In a device of the class described, the

' combination with a base plate, a pair of upwardly extending concentric annular ridges formed thereon, of cylindricalcasings adapted to fit over and abut against the ridges whereby liquid and gas chambers are formed, of means for permitting the introduction of fluid pressure into' the liquid chamber, and pipe connections between the liquid and gas chambers, a valve positioned within said pipe connections, a carbid receptacle positioned in said gas chamber and 5' a trough extending transversely above the 'carbid receptacle and below the saidv pipe connection I whereby a continuous flow of liquid will be delivered to the carbid receptacle until the gas chamber produces a pressure therein which is greater than the fluid pressure introduced into the water chamber.

FREDERICK WILLIAM MARTIN.

In presence of two' witnesses:

GEo. W. MAR'rrN, A. JOHNSON. 

